The polyethylene rising pipe is designed for all Rewatec tanks. It is also compatible with Octagon and Octagon Light tanks. The ascending pipe can be used if the tank needs to be founded at a greater depth. Drainage gutters on the pipe prevent surface water from entering the tank. The ascending pipe can be extended with a distance ring or shortened with a saw to any desired height. A DN600 gasket must be used between the tank flange and the VS pipe.